The area of Mississippi Territory was increased in 1804 and again in 1812.

On December 10, 1817, Mississippi was admitted into the Union as a state and Alabama Territory to the east was spun off.

List of delegates representing the district On April 7, 1798, the Mississippi Territory was created. A non-voting delegate was elected at-large beginning March 4, 1801. Delegate Party Years Congress Electoral history Narsworthy Hunter Democratic-Republican December 7, 1801 –March 11, 1802 Elected in 1801.Died. Vacant March 11, 1802 – December 6, 1802 Thomas M. Green Jr. Democratic-Republican December 6, 1802 –March 3, 1803 Elected to finish Hunter's term.Retired. William Lattimore Democratic-Republican March 4, 1803 –March 3, 1807 Elected in 1803.Re-elected in 1805.Retired. George Poindexter Democratic-Republican March 4, 1807 –March 3, 1813 Elected in 1806.Re-elected in 1808.Re-elected in 1811.Retired. William Lattimore Democratic-Republican March 4, 1813 –March 3, 1817 Elected in 1813.Re-elected in 1815.Retired. Vacant March 4, 1817 – December 10, 1817 Cowles Mead was elected in 1817 but not seated.The district became inactive as Mississippi achieved statehood.

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